allow to open Autofill settings also if service is enabled

src/keepass2android/settings/DatabaseSettingsActivity.cs

@@ -385,7 +385,16 @@ namespace keepass2android
                 {
 
                     var intent = new Intent(Settings.ActionRequestSetAutofillService);
-                    intent.SetData(Android.Net.Uri.Parse("package:" + Context.PackageName));
+                    if (((AutofillManager) Activity.GetSystemService(Java.Lang.Class.FromType(typeof(AutofillManager))))
+                        .HasEnabledAutofillServices)
+                    {
+                        intent.SetData(Android.Net.Uri.Parse("package:" + Context.PackageName + "notexisting")); //if we use our package name, the activity won't launch
+                    }
+                    else
+                    {
+                        intent.SetData(Android.Net.Uri.Parse("package:" + Context.PackageName));
+                    }
+
                     try
                     {
                         Context.StartActivity(intent);
@@ -401,6 +410,10 @@ namespace keepass2android
                             .Show();
 
                     }
+                    catch (Exception e)
+                    {
+                        Kp2aLog.LogUnexpectedError(e);
+                    }
                 };
             }
 
@@ -527,11 +540,6 @@ namespace keepass2android
                 else
                 {
                     autofillPref.Summary = Activity.GetString(Resource.String.not_enabled);
-
-
-
-
-
                 }
 
             }